HALTSYS(C) XENIX System V HALTSYS(C)
Name
haltsys, reboot - Closes out the file systems and shuts down
the system.
Syntax
/etc/haltsys
/etc/reboot
Description
The haltsys utility performs a uadmin() system call (see
uadmin(S)) to flush out pending disk I/O, mark the file
systems clean, and halt the processor. haltsys takes effect
immediately, so user processes should be killed beforehand.
shutdown(C) is recommended for normal system shutdown, since
it warns users, terminates processes, then calls haltsys.
Use haltsys directly only if you cannot run shutdown; for
example, because of some system problem.
The reboot command performs the same function as haltsys,
except the system is rebooted automatically afterwards.
Notes
haltsys locks hard disk heads.
See Also
shutdn(S), uadmin(S), shutdown(C)
Page 1 (printed 8/7/87)